mapshader.mercator.MercatorTileDefinition#

class mapshader.mercator.MercatorTileDefinition(x_range, y_range, tile_size=256, min_zoom=0, max_zoom=30, x_origin_offset=20037508.34, y_origin_offset=20037508.34, initial_resolution=156543.03392804097)[source]#

Implementation of mercator tile source. In general, tile sources are used as a required input for TileRenderer.

Parameters:

  • x_range (tuple) – Full extent of x dimension in data units.

  • y_range (tuple) – Full extent of y dimension in data units.

  • min_zoom (int) – A minimum zoom level for the tile layer. This is the most zoomed-out level.

  • max_zoom (int) – A maximum zoom level for the tile layer. This is the most zoomed-in level.

  • x_origin_offset (int) – An x-offset in plot coordinates.

  • y_origin_offset (int) – An y-offset in plot coordinates.

  • initial_resolution (int) – Resolution (plot_units / pixels) of minimum zoom level of tileset projection. None to auto-compute.

  • format (int) – An y-offset in plot coordinates.

Returns:

tileScheme

Return type:

MercatorTileDefinition

__init__(x_range, y_range, tile_size=256, min_zoom=0, max_zoom=30, x_origin_offset=20037508.34, y_origin_offset=20037508.34, initial_resolution=156543.03392804097)[source]#

Methods

__init__(x_range, y_range[, tile_size, ...])

get_level_by_extent(extent, height, width)

get_resolution_by_extent(extent, height, width)

get_tile_meters(tx, ty, level)

get_tiles_by_extent(extent, level)

is_valid_tile(x, y, z)

meters_to_pixels(mx, my, level)

meters_to_tile(mx, my, level)

pixels_to_meters(px, py, level)

pixels_to_raster(px, py, level)

pixels_to_tile(px, py, level)

to_esri_tile_metadata(output_file_path)

Create ESRI tile metadata JSON

to_ogc_tile_metadata(output_file_path)

Create OGC tile metadata XML